I bought one for my amp, and it gave me a bigger soundstage, and extended frequencies in both directions quite well, without upsetting my balance. I quickly ordered ones for my dac and pc also. The dac was harder to notice, but was there. The PC cable upgrade improved my soundstage and detail, as well as my monitors clarity and depth of colors, even though both are digital outs.
At this price, this cable will still be the same cheap wire as cheaper cables, only thicker gauge with some cheap shielding added. It is, however, enough to sell me on power cable improvements. Next, I am going shopping for a used name brand Power cable, to try on my amp for roughly $300. My DAC is $2400, and most forum posters say they are spending much more on their cabling than that, but I have to work up to thinking it will be worth this, first. Plus, I'll need 3, and then probably another for my speaker amp, so goodbye money until then, if the next one is worth the extra $.
But if you are a cable sceptic, this is the one to try first. You can't go too wrong for $60. Unless it works, admit it was cheap, and then want more...